/*
 * JHeuristics - The Java Meta-Heuritics Library
 * Copyright (C) 2004-2005, Universidade Federal de Campina Grande. All rights reserved.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package org.jheuristics.ga.operators.selectors;

import java.io.Serializable;

import org.jheuristics.Individual;
import org.jheuristics.ga.DefaultPopulation;
import org.jheuristics.ga.GAConfig;
import org.jheuristics.ga.GAStatus;
import org.jheuristics.ga.Population;
import org.jheuristics.ga.operators.Selector;

/**
 * TODO
 *
 * @author Marcell Manfrin, marcell@ourgrid.org, Jan 9, 2006
 */
public class AllIndividualsSelector implements Selector, Serializable {

    /**
     * TODO
     *
     * @param population
     * @param howMany
     * @param status
     * @param config
     * @return
     * @see org.jheuristics.ga.operators.Selector#select(org.jheuristics.ga.Population, int, org.jheuristics.ga.GAStatus, org.jheuristics.ga.GAConfig)
     */
    public Individual[] select(Population population, int howMany, GAStatus status, GAConfig config) {
        if (null == population) {
			// TODO: ERROR MSG
			throw new NullPointerException();
		}
        Population result = new DefaultPopulation();
        result.addIndividuals(population);
        result.sort();
        return result.toIndividualArray();
    }

}
